Impact Mechanism for a Hammer Drill
An impact mechanism for a hammer drill, which has a housing and a drill bit protruding outside the housing, is provided. The mechanism includes firstly an impact platform within the housing; the impact platform is in connection with the drill bit for receiving impact forces and for transferring the impact forces to the drill bit. The mechanism also has a plurality of cams within the housing, and the plurality of cams are angularly spaced apart and arranged about an axis of rotation. The mechanism further includes a plurality of hammers placed within the housing and interactable with both the impact platform and the plurality of cams. The plurality of hammers are angularly spaced apart and arranged about the axis of rotation, and each hammer is capable of reciprocating along the axis for exerting the impact forces on the impact platform. Each of the plurality of cam is driven to interact with each of the plurality of hammers alternatively such that the plurality of hammers are driven to reciprocate along the axis so as to generate the impact forces.
Patent Number: US7137458B2
Application Number: US2004986174A
Inventor: Yung, Kai Leung
Priority Date: 12 Nov 2004
Priority Number: US7137458B2
Application Date: 12 Nov 2004
Publication Date: 21 Nov 2006
IPC Current: B23B004502 | B25D001110
US Class: 173101 | 173117 | 173205 | 173217
Assignee Applicant: The Hong Kong Polytechnic University
Title: Impact mechanism for a hammer drill
Usefulness: Impact mechanism for a hammer drill
Summary: Used in a hammer drill (claimed).
Novelty: Impact mechanism for hammer drill, has multiple cams that are driven to interact with each of hammers alternatively such that hammers are driven to reciprocate so as to generate impact forces on impact platform
機器人/機械
YUNG Kai-leung
美國
